DIGITAL TO ANALOG CONVERTER,申请号KR20080018975-传众专利搜索

DIGITAL TO ANALOG CONVERTER

申请公布号：KR20090031184(A)

申请号：KR20080018975

申请日期：2008.02.29

申请公布日期：2009.03.25

申请人：

NOVATEK MICROELECTRONICS CORP.

发明人：HSU CHIN HUNG

分类号：H03M1/66

主分类号：H03M1/66

摘要：A digital to analog converter is provided to reduce area and cost of a circuit layout by the number of a resistor, a switch, and a wire. A digital to analog converter(200) includes a first series resistors, a switch of a first cascade, a second series resistors, and a switch of a second cascade. The first series resistors includes a first and a second resistor(R0,R1), which are connected with a first voltage and the output of the digital-analog converter electrically. The switch of the first cascade includes a first and a second switch, which is controlled by a digital signal. The second series resistor includes a first and a second matching resistor, which are connected with a second voltage and the output of the digital-analog converter electrically. The switch of the cascade includes the first and the second matching switch, which is controlled by digital inversion signal.